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Example 22 - Find number of words of AGAIN. What will be 50th word - Examples

  1. Chapter 7 Class 11 Permutations and Combinations
  2. Serial order wise
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Example 22 Find the number of words with or without meaning which can be made using all the letters of the word AGAIN. If these words are written as in a dictionary, what will be the 50th word? ‘AGAIN’ = 2A, 1G, 1I & 1N In dictionary, letters appear alphabetically, Total no of words starting with A, G, & I = 24 + 12 + 12 = 48 Hence 49th word will be start from N i.e. N A A G I & remaining four rearrange according to a dictionary The 50th words is N A A I G Hence the 50th words will be NAAIG

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CA Maninder Singh is a Chartered Accountant for the past 8 years. He provides courses for Practical Accounts, Taxation and Efiling at teachoo.com .